Gonzalez appeared in 47 games for the Nationals in 2012, registering a 3.03 earned run average in just over 35 innings of work.

The 11-year veteran has spent time with six different teams in his major league career since making his debut in 2003 with the Pittsburgh Pirates. Gonzalez holds a career ERA of 3.14 and has 56 saves in 509 career games.

Gonzalez pitched for Milwaukee last season, and struggled to the tune of an 0-3 record with a 4.68 ERA in 50 innings pitched.